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Reactions of 4-benzoyl-1,5-diphenyl-1H-pyrazole-3- carboxylic acid chloride with various hydroxylamines and carbazates
Pyrazole-3-carboxylic acid nucleophilic substitution furan-2,3-dione
2010/12/29
The 1H-pyrazole-3-carboxylic acid 2 was converted via reactions of its acid chloride 3 with various hydroxylamine 4a-f and carbazate derivatives 8a-c into the corresponding novel N-substituted-4-benzo...
Reactions of Alkenes with Sodium Perborate and Sodium Chloride
Alkenes acetoxy alcohols chlorohydrins sodium perborate sodium chloride
2010/4/19
Sodium perborate oxidatively chlorinates a variety of alkenes with sodium chloride to form the corresponding chloro derivatives under mild conditions.
A New Approach to the Ring Opening Reactions of 2,7,7-Trimethyl-3,3-dibromotricyclo[4.1.1.02,4]octane
2,7,7-Trimethyl-3 3-dibromotricyclo[4.1.1.02,4]octane
2010/4/20
The reaction of a-pinene and dibromocarbene produced a fairly unstable product, 2,7,7-trimethyl-3,3-dibromotricyclo[4.1.1.02,4]octane, from which 3-bromo-7,7-dimethyl-2-methylenebicyclo[4,1,1]oct-3-en...
Synthesis of Novel Proponohydrazides and Their Hydrolysis Reactions
Furan-2,3-dione Proponohydrazide Hydrolysis Pyrazolone
2010/4/20
4-(4-Methoxybenzoyl)-5-(4-methoxyphenyl)-2,3-furandione 1 reacted with N-aryl substituted phenylhydrazones 3a-h via the p,p'-dimethoxydibenzoylketene intermediate 2 giving the proponohydrazide derivat...
Diels-Alder Reactions of New Methoxysubstituted-6-arylfulvenes
Fulvenes Cycloadditions Isomers Stereoselectivity
2010/4/20
Fulvenes 1, 2 and 3 were prepared and their Diels-Alder cycloaddition reactions with maleic anhydride, N-phenylmaleimide and dimethyl acetylenedicarboxylate (DMAD) as dienophiles leading to endo- and ...
Studies on the Reactions of 4-Ethoxycarbonyl-5-phenyl-2,3-dihydro-2,3- furandione with Some NH Nucleophiles
Cyclic oxalyl compounds quinoxaline pyrimidine benzoylmalonic acid oxazine pyrazole carboxylic acid
2010/4/20
4-Ethoxycarbonyl-5-phenyl-2,3-dihydro-2,3-furandione 1 was reacted with o-phenylenediamine, substituted ureas and methylcarbamate or acetamide to give quinoxaline 2, pyrimidine 3 and benzoylmalonic ac...
Synthesis and Some Reactions of 4-Benzoyl-5-Phenyl-1-Pyridin-2-yl-1H- Pyrazole-3-Carboxylic Acid
Cyclic oxalyl compounds Pyrazole Pyrazolo [3,4-d] Pyridazinone
2010/4/20
The 1H-pyrazole-3-carboxylic acid 2, obtained from the furandione 1 and 2-hydrazinopyridine, was decarboxylated to give 4-benzoyl-5-phenyl-1-pyridin-2-yl-pyrazole derivative 3. Some ester 4 derivative...
Synthesis and Some Reactions of 4-Benzoyl-5-Phenyl-1-(2,4,6-Trichloro Phenyl)-1H-Pyrazole-3-Carboxylic Acid
Cyclic oxalyl compounds Pyrazole Pyridazine Pyrazolo [3,4-d] Pyridazinone
2010/4/21
Furandione 1 was reacted with 2,4,6-trichlorophenylhydrazine to give the 1H-pyrazole-3-carboxylic acid 2 together with a new pyridazinone derivative 3. Then 2 was converted into the corresponding este...
One Step Synthesis and Some Reactions of 7-Hydrazino-3,4-Diphenyl- 2H-Pyrazolo [3,4-d] Pyridazine
7-Hydrazino-3 4-Diphenyl- 2H-Pyrazolo [3,4-d]
2010/4/21
The 7-hydrazino-3,4-diphenyl-2H-pyrazolo-[3,4-d]-pyridazine 3, obtained in 2 different ways consisting of the reactions of anhydrous hydrazine with 4-benzoyl-5-phenyl-2,3-dihydro-2,3-furandione 1 or 3...
Diels-Alder Reactions Using 5 M LiClO4 -Diethyl Ether Catalyst
Diels-Alder Reactions 5 M LiClO4 -Diethyl Ether Catalyst
2010/4/22
The rate acceleration of Diels-Alder reactions in 5.0 M lithium perchlorate-diethyl ether was re-examined using itaconic anhydride and itaconic acid. Rate acceleration was observed for non-functionali...
Synthesis and Structure of Systems Containing Pyramidalized and Strained Double Bond: An Investigation on the Cycloaddition Reactions of cis- and trans-3,8-dicarbomethoxy-3,8-dihydroheptalene
Synthesis Structure of Systems Containing Pyramidalized Strained Double Bond An Investigation on the Cycloaddition Reactions of cis- trans-3,8-dicarbomethoxy-3,8-dihydroheptalene
2010/6/27
The cycloaddition reactions of cis-3,8-dicarbomethoxy-3,8-dihydroheptalene cis-2 and trans-3,8-dicarbomethoxy-3,8-dihydroheptalene trans-2 with various dienophiles such as dimethyl acetylenedicarboxyl...
Reactions of N-Aminopyrimidine Derivatives with 1,3-Dicarbonyl Compounds
Enamine Imine 1,3-Diketone Addition reaction
2010/6/29
The reactions of 1-Amino-pyrimidine derivatives (1) and some 1,3-dicarbonyl compounds (2) were realized in the presence of p-toluensulfonic acid catalyst to give convenient enamine (3) and/or imine de...
Reactions of 4-Amino-4,5-Dihydro-1H-1,2,4-Triazol-5-ones and 4-Amino-4H-1,2,4-Triazoles with Some Carboxylic Acid Anhydrides
Reactions 4-Amino-4,5-Dihydro-1H-1,2,4-Triazol-5-ones 4-Amino-4H-1,2,4-Triazoles Some Carboxylic Acid Anhydrides
2010/7/1
3-Alkyl(Aryl)-4-tetrachlorophthalimido-4,5-dihydro-1H-1,2,4-triazol-5-ones (2) and 3-alkyl(aryl)-4-(1,8-naphthalimido)-4,5-dihydro-1H-1,2,4-triazol-5-ones (3) were synthesized from the reactions of 3-...
Hydrolysis and Condensation Reactions of Methacrylate-Modified Aluminum Alkoxides
Hydrolysis Condensation Reactions Methacrylate-Modified Aluminum Alkoxides
2010/8/19
The hydrolysis of aluminum tri-sec-butoxide and compounds obtained by substituting the larger functional groups for the present alkly groups in Al(O-sec-Bu)3, and the reaction of these products with a...